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With the rapid development of performance and long‐term stability, bismuth vanadate (BiVO4) has emerged as the preferred photoanode in photoelectrochemical tandem devices. Although state‐of‐the‐art BiVO4 photoanodes realize a saturated photocurrent density approaching the theoretical maximum, the fill factor (FF) is still inferior, pulling down the half‐cell applied bias photon‐to‐current efficiency...
In article number 1804976, Yexiang Tong, Shihe Yang, and co‐workers fabricate a nanophotonic with no additional electron transport layer. One of the remarkable features is that it can selectively enhance the light absorption with adjustable absorption band edges and reasonably redistribute light absorption to enable more efficient charge separation in the branched nanobowl substrates. This structure...
Constructing 3D nanophotonic structures is regarded as an effective means to realize both efficient light absorption and efficient charge separation. However, most of the 3D structures reported so far enhance light trapping beyond the absorption onset wavelength, and thus greatly attentuate or even completely block the long‐wavelength light, which could otherwise be efficiently absorbed by narrow‐bandgap...
Structural flexibility can be a desirable trait of an operating catalyst because it adapts itself to a given catalytic process for enhanced activity. Here, amorphous cobalt hydroxide nanocages are demonstrated to be a promising electrocatalyst with an overpotential of 0.28 V at 10 mA cm−2, far outperforming the crystalline counterparts and being in the top rank of the catalysts of their kind, under...
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